use disk::cache::CacheUsage;
use err::Error;
use netpod::{NodeConfig, NodeConfigCached};
use tokio::io::AsyncReadExt;
#[allow(unused_imports)]
use tracing::{debug, error, info, trace, warn};

pub fn main() {
    match taskrun::run(go()) {
        Ok(k) => {
            info!("{:?}", k);
        }
        Err(k) => {
            error!("{:?}", k);
        }
    }
}

async fn go() -> Result<(), Error> {
    use clap::Clap;
    use retrieval::cli::{ClientType, Opts, SubCmd};
    let opts = Opts::parse();
    match opts.subcmd {
        SubCmd::Retrieval(subcmd) => {
            trace!("testout");
            info!("testout");
            error!("testout");
            let mut config_file = tokio::fs::File::open(subcmd.config).await?;
            let mut buf = vec![];
            config_file.read_to_end(&mut buf).await?;
            let node_config: NodeConfig = serde_json::from_slice(&buf)?;
            let node_config: Result<NodeConfigCached, Error> = node_config.into();
            let node_config = node_config?;
            retrieval::run_node(node_config.clone()).await?;
        }
        SubCmd::Client(client) => match client.client_type {
            ClientType::Status(opts) => {
                retrieval::client::status(opts.host, opts.port).await?;
            }
            ClientType::Binned(opts) => {
                let beg = opts.beg.parse()?;
                let end = opts.end.parse()?;
                let cache_usage = if opts.ignore_cache {
                    CacheUsage::Ignore
                } else if opts.recreate_cache {
                    CacheUsage::Recreate
                } else {
                    CacheUsage::Use
                };
                retrieval::client::get_binned(
                    opts.host,
                    opts.port,
                    opts.backend,
                    opts.channel,
                    beg,
                    end,
                    opts.bins,
                    cache_usage,
                    opts.disk_stats_every_kb,
                )
                .await?;
            }
        },
        SubCmd::GenerateTestData => {
            disk::gen::gen_test_data().await?;
        }
    }
    Ok(())
}

#[test]
fn simple_fetch() {
    use netpod::Nanos;
    use netpod::{timeunits::*, Channel, ChannelConfig, Cluster, Database, Node, NodeConfig, ScalarType, Shape};
    taskrun::run(async {
        let t1 = chrono::Utc::now();
        let node = Node {
            host: "localhost".into(),
            listen: "0.0.0.0".into(),
            port: 8360,
            port_raw: 8360 + 100,
            data_base_path: err::todoval(),
            ksprefix: "daq_swissfel".into(),
            split: 0,
            backend: "testbackend".into(),
        };
        let query = netpod::AggQuerySingleChannel {
            channel_config: ChannelConfig {
                channel: Channel {
                    backend: "sf-databuffer".into(),
                    name: "S10BC01-DBAM070:BAM_CH1_NORM".into(),
                },
                keyspace: 3,
                time_bin_size: Nanos { ns: DAY },
                array: true,
                scalar_type: ScalarType::F64,
                shape: Shape::Wave(err::todoval()),
                big_endian: true,
                compression: true,
            },
            timebin: 18720,
            tb_file_count: 1,
            buffer_size: 1024 * 8,
        };
        let cluster = Cluster {
            nodes: vec![node],
            database: Database {
                name: "daqbuffer".into(),
                host: "localhost".into(),
                user: "daqbuffer".into(),
                pass: "daqbuffer".into(),
            },
        };
        let node_config = NodeConfig {
            name: format!("{}:{}", cluster.nodes[0].host, cluster.nodes[0].port),
            cluster,
        };
        let node_config: Result<NodeConfigCached, Error> = node_config.into();
        let node_config = node_config?;
        let query_string = serde_json::to_string(&query).unwrap();
        let host = tokio::spawn(httpret::host(node_config.clone()));
        let req = hyper::Request::builder()
            .method(http::Method::POST)
            .uri("http://localhost:8360/api/1/parsed_raw")
            .body(query_string.into())?;
        let client = hyper::Client::new();
        let res = client.request(req).await?;
        info!("client response {:?}", res);
        let mut res_body = res.into_body();
        use hyper::body::HttpBody;
        let mut ntot = 0 as u64;
        loop {
            match res_body.data().await {
                Some(Ok(k)) => {
                    //info!("packet..  len {}", k.len());
                    ntot += k.len() as u64;
                }
                Some(Err(e)) => {
                    error!("{:?}", e);
                }
                None => {
                    info!("response stream exhausted");
                    break;
                }
            }
        }
        let t2 = chrono::Utc::now();
        let ms = t2.signed_duration_since(t1).num_milliseconds() as u64;
        let throughput = ntot / 1024 * 1000 / ms;
        info!(
            "total download {} MB   throughput {:5} kB/s",
            ntot / 1024 / 1024,
            throughput
        );
        drop(host);
        //Err::<(), _>(format!("test error").into())
        Ok(())
    })
    .unwrap();
}